VXAE-OBAS, that's a strange name for a cache. But it's actually a waypoint code, sort of like a geocode. It's from the geolocation based game called GeoVexilla, one of several available on the website gpsgames.org:

GeoVexilla is a GPS game that uses the globe for a playing field.At random times, in random places, random virtual flags appear on a map of the world.The challenge is to visit a flag's waypoint before the flag disappears.Each time you succeed, you collect that flag, increasing your score." Source: http://www.gpsgames.org/index.php?option=com_wrapper&wrap=GeoVexilla

"GeoVexilla is a GPS game that uses the globe for a playing field. At random times, in random places, random virtual flags appear on a map of the world.The challenge is to visit a flag's waypoint before the flag disappears.Each time you succeed, you collect that flag, increasing your score.

GeoVexilla scores are based on how many flags each player has captured and how many collections of flags he or she has completed."

A set of coordinates, a place to go, but unlike geocaching, there's nothing there to find. At least no container, no logsheet. Just a random spot on a map, for a short time, and then it's gone. The fun is trying to get there, if it can be reached. Each waypoint is represented on the map as a country flag. For example, VXAE-OBAS was the Canada flag - of course I had to go get that one!

And luckily that flag was right off a public hiking trail (rare!). In fact, it was literally meters from the trail. And there just happened to be a hidding spot perfect for the OCNA cache I've been carrying around.

And if you visit quickly, you can find the cache and grab the flag. Bonus!

Oh, and be sure to take note of the logging password, you'll need that to log the cache.